Mixer.



A.. E; MONITT.

. MIXER.

PPLIGAT N 905,092. A 1 @WN 21 19? Patented Nov. 24,190x. i -7 2 SHEETS-TSHEBT l. '7 7 A a .7 1" 7 "5 9 9 zu. 0 a ff f f/ ff a E w52 '2li' 1 A 3i 5,3 r I 539 55 s a 25 a 4 Invezzfor: wmesses:

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A. E. MONITT.

MIXER. APPLICATION FILED JAN. 21. 1908.

Patented Nov. 24, 1908.

2 SHEETS-SHEET 2.

m I fil' TME NaRRls PsrERs co. WASHINGTON. n. c.

. l This invention relates to that class-of ARCHIBALD E. MCNITT, oIFCHIoAGoJLLIN'oIs.

` MIXER.

Specification of LettersPatent'.

Patented Nov. 24, 1908;

Application filed January 21, 1908. Serial No. 411,958.

To all whom it may concern:

Be it known that`I,.-'A1zcHJ:BALD E. Mo- N ITT, a citizen of thek United States,yresiding at Chicago, in the county of Cook and State of Illinois, have inventedA certain new and useful Improvements in yMixers, of vwhich the/,following is a specication.

a, paratus respecially .adaptedV to be used feor mlxing building material,as with sand, cement, and crushed stone.` w

xItxhasV been customary to mount vthe revoluble `mixer-body `upon rollers, but considerable objection is foundl with such' aconstruction, 'as sand, gravel and 'other matter readily contacts said'rollers, thus resulting 1n greatly increasing the4V friction thereofy as well as quickly wearing` out the sides ofthe m1xer"body.` In myimproved construction, the: revoluble mixer body iis suspendedwin a suitable#manner-sofas to JobviateA these dificultiesf l One ofthe objects of my invention is to construct a mixer Yin such manner that the revoluble. mixer .body mayV .bef` suspended fromsuitable frame work so as to readily and efficiently perform the mixing operation.

Another object is to arrangethe baifleror mixing plates in the interior ofthe mixing chamber so as tonotronly `thoroughly mix the materialtherein but to also provide an even and uniformfeed., i j i Another object isto construct a telescopic chute or funnel which is capable of being readily manipulated `back and forthl V`so as to positively regulate the amount of material to be discharged Vfrom the mixer.

Another object is to `construct the front head of the mixerbody soas to enable the telescopic chute :to eectually coperate therewith for permitting constant control as to the amount Vof material to4 be' discharged.

The invention Aconsists in the. features of construction and combination of parts hereinafter described and claimed.`

In the drawings, Figure 1 is atopor plan view of my improved mixer; Fig. 2 a vertical section thereof; Fig. 3 a cross section taken on lmet-f3 ofFig. 2 looking in the direction ofthearrow; Figzta similar view. to Fig. 3 as used with a cable; `anol Fig. 5 `a side elevation with the supporting framein section showing .the drum .suspended by `means of cables.v` i 1.,...

My improved mixer 6 is suitably mounted tainedinjournal boxes l5,as' in Fig. 2,

which arefsupported `upon a cross -piece 16. "rfAdjacent to tithe' sprocket lwheel 12 is a hopper ."1'7 fof any suitable construction, formed :in'said frame, which, lat its lower contracted end, merges i into an annular.

orifice l8"formed` to 1 slightly .project within the rear: head 10"0f' the revoluble mixer body 20,l said.V orifice" permitting Ythe material to bef mixed to be'passedfrom the hopperto the'mixer body v20. The revoluble shaft `l0, asfindicated, is disposedy lengthwise over and upon the supportingstructure and has keyed thereon, as 'shown in Figs. l and 2, outer and inner sprocket wheels'21 and 22, respectively, which in .turn` carry suitable actuating chains 23 passed over band sprockets 24 .aboutthey` circumferential exterior of the mixer.. body aforesaid. U Onthe respective ends `of this` mixer body and adjacent the said `band sprockets are formed trackways 25, which areadapted to contact with idlers 26r'etained in brackets 27 securedjto the supporting structure, as in Figs. 3 ,and 4. This mode of construction enables the mixer body Yto be xedly suspended.

vAs thematerial to be mixed enters the orilice 18 at the bottom of the hopper 17, it engages a numberof bafie or mixing plates 28,.` which extend lengthwise `of the mixer ,bodyV and are arrangedatthe proper spiral slope to` insure aA positive forward feed.

This manner of positioning the baffle or mixing plates: provides adequate means for insuring a proper and constant forward feed ,of` the material as it is revolved in the mixing chamber. These baffle or mixing, plates have outwardly extending ledges 29, formed .at their forward ends, as in Fig. 2, for catch- Aing the tmixedmaterial preparatory to dischargin'g-fthe same. The front head 30 of the revoluble mixer drum has a central dischargeopening .31 and is recessed on its 'inner side-,1 as at 32;, which, fin connection with the ledges 29, forms, in effect, a pocket.

The telescopic discharge chute is positioned just in front of the central discharge opening 3l of the front head, and comprises an outer curved fixed member 33 attached .to supporting brackets 34. An inner scoopshaped movable section 35, of the same general formation as the outer fixed member 33, is capable of having its inner end 3G projected within the discharge opening, as indicated in dotted lines, and withdrawn, as shown in Fig. 2. A cross bar 37 is secured over the inner movable section 35 and has a turn cap 38 thereon, through which is inserted an actuating lever 39, the outer end of which is adapted to be held by the operator, and the inner end passes through a lever regulator 40, which limits the thrust of the lever in both directions, said lever being pivotally mounted on a bracket il. In case it is not desirable to employ sprocket chains and sprocket bands, as aforesaid, pulleys 4:2 may be keyed upon the revoluble shaft l0, and pulley grooves 43 about the periphery of the movable mixer drum, asin F ig. 4t, may be utilized in connection with a continnous rope or cable 44.

- rear of the drum and each plate at the discharge end of the drum having its inner corner projecting towards the center of the drum, forming at the forward end of each plate a ledge, a head for the discharge end of the drum, the inner face of the head and the ledges of the plates forming a series of pockets, and means for revolving the drum, substantially as described.

2. A rotary drum having on its interior a plurality of continuous spiral baille plates, each plate extending from front to rear of the drum and each plate at the discharge end of the drum having its inner corner projecting toward the center of the drum, forming at the forward end of each plate a ledge, a head for the discharge end of the drum and having a convex inner face, the inner concave face of the head and the ledges o`f the plates forming a series of pockets, and means for revolving the drum, substantially as described.

3. A rotary drum mixer having on its interior a plurality of continuous spiral baille plates, each plate extending from front to rear of the drum and each plate at the discharge end of the drum having its inner corner projecting towards the center of the drum, forming at the forward end of each plate a ledge, a head for the discharge end of the drum the inner face of the head and the ledges of the plates forming a series of pockets, means for revolving the drum, and means for regulating the discharge of the mixed material dropped from the pockets, substantially as described.

4. In a mixer, a mixing chamber having its head at the discharge end thereof recessed on its inner side, means for suspending the mixing chamber, angularly disposed baille plates within the mixing chamber for mixing and feeding forward the mixed mate 1ial, said baille plates having ledges formed thereon, means for revolving the mixing chamber, and 1n mns for regulating the discharge of the mixed material, substantially as described.

5. ln a mixer, a mixing chamber, angularly disposed baille plates secured to the interior of the mixing chamber for mixing and feeding forward the mixed material, said baille plates having ledges formed thereon, the forward. hind of the mixing chamber being recessed on its inner side to form a pocket for the mixed material, means for suspending the mixing chamber, a revoluble shaft, sprocket wheels keyed to the revoluble shaft, band sprockets about the mixing chamber, chains engaging the sprocket wheels and the band sprockets, :1nd means for actuating the revoluble shaft, substantially as described.

G. The combination in a rotary mixer, of a supporting frame, a revoluble mixing drum, a plurality of baille plaies on the interior of the drum, each baille plate angularly disposed and extending from end to end of the drum, each baille plate at its discharge end having its inner corner projecting toward the center of the drum, forming at the forward end of each plate a ledge for mixing and feeding forward the materialv and catching and dropping the mixed material, and means for revolving the drum, substantially as described.

7. The combination in a rotary7 mixer, of a drum, a mixing drum inclosing a mixing chamber, a head for the discharge end of the drinn, said head having a recessed face on its inner side, means for suspending the drum, a plurality of baille plates on the interior of the drum, iach baille plate angularly disposed and extending from end to end of the drum, and each baille plate at its discharge end having its inner corner projected towards the center of the drum, forming at the forward end of each plate a ledge, for mixing and feeding forward the material and catching and dropping the mixed material, and means for revolving the drum, substantially as described. Y

8. The combination in a rotary mixer, of a frame, a mixing drum inolosing a mixing chamber, a head for the discharge end of the drum, said head having a recessed face on its inner side, means for suspending the drum, a plurality of baiiie lates on the interior of the drum, each ba e plate angularly disposed and extending from end to end of the drum, and each baie plate at its discharge end having its inner corner projected to- VWards the center of the drum, forming at the forward end of each plate a ledge, for 15 mixed material dropped from the ledges, 20

substantially as described.

ARCHIBALD E. MGNITT.

Witnesses WALKER BANNING, PIERsoN W. BANNING. 

